vtkCallbackTools.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "vtkCallbackTools.h"
 
// LOCAL
#include "VTKExtensions/Widgets/CustomVtkBoxWidget.h"
 
// CV_CORE_LIB
#include <CVGeom.h>
#include <CVLog.h>
 
// CV_DB_LIB
#include <ecvColorTypes.h>
 
// VTK
#include <vtkAngleRepresentation.h>
#include <vtkAngleWidget.h>
#include <vtkAssembly.h>
#include <vtkAxesActor.h>
#include <vtkBoxRepresentation.h>
#include <vtkBoxWidget2.h>
#include <vtkCamera.h>
#include <vtkColorTransferFunction.h>
#include <vtkImageData.h>
#include <vtkImplicitPlaneRepresentation.h>
#include <vtkImplicitPlaneWidget2.h>
#include <vtkLogoRepresentation.h>
#include <vtkLogoWidget.h>
#include <vtkLookupTable.h>
#include <vtkOrientationMarkerWidget.h>
#include <vtkPNGReader.h>
#include <vtkPlane.h>
#include <vtkProperty2D.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRendererCollection.h>
#include <vtkScalarBarActor.h>
#include <vtkScalarBarRepresentation.h>
#include <vtkScalarBarWidget.h>
#include <vtkTextActor.h>
#include <vtkTextWidget.h>
#include <vtkTransform.h>
 
namespace CallbackTools {
 
/******************************** vtkIPWCallback
 * *********************************/
vtkIPWCallback::vtkIPWCallback() : Plane(nullptr), Actor(nullptr) {}
 
void vtkIPWCallback::Execute(vtkObject *caller, unsigned long, void *) {
    vtkImplicitPlaneWidget2 *planeWidget =
            reinterpret_cast<vtkImplicitPlaneWidget2 *>(caller);
    vtkImplicitPlaneRepresentation *rep =
            reinterpret_cast<vtkImplicitPlaneRepresentation *>(
                    planeWidget->GetRepresentation());
    rep->GetPlane(this->Plane);
}
 
/******************************** vtkBoxCallback
 * *********************************/
vtkBoxCallback::vtkBoxCallback() { m_actors.clear(); }
 
void vtkBoxCallback::SetActors(const std::vector<vtkActor *> actors) {
    m_actors = actors;
}
 
void vtkBoxCallback::Execute(vtkObject *caller, unsigned long, void *) {
    // 将调用该回调函数的调用者caller指针，转换为vtkBoxWidget2类型对象指针
    //  vtkSmartPointer<vtkBoxWidget2> boxWidget =
    //  vtkBoxWidget2::SafeDownCast(caller);
    vtkSmartPointer<CustomVtkBoxWidget> boxWidget =
            CustomVtkBoxWidget::SafeDownCast(caller);
    // vtkSmartPointer<vtkBoxWidget2>
    // boxWidget=reinterpret_cast<vtkBoxWidget2>(caller);
    vtkSmartPointer<vtkTransform> t = vtkSmartPointer<vtkTransform>::New();
    // 将boxWidget中的变换矩阵保存在t中
    boxWidget->GetTransform(t);
    for (vtkActor *actor : this->m_actors) {
        if (actor) {
            actor->SetUserTransform(t);
        }
    }
 
    // emit uerTransform(t->GetMatrix()->GetData());
}
 
/******************************** vtkBoxCallback2
 * *********************************/
vtkBoxCallback2::vtkBoxCallback2() {}
 
void vtkBoxCallback2::SetActor(vtkSmartPointer<vtkActor> actor) {
    m_actor = actor;
}
 
void vtkBoxCallback2::Execute(vtkObject *caller, unsigned long, void *) {
    // 将调用该回调函数的调用者caller指针，转换为vtkBoxWidget2类型对象指针
    vtkSmartPointer<vtkBoxWidget2> boxWidget =
            vtkBoxWidget2::SafeDownCast(caller);
    // vtkSmartPointer<vtkBoxWidget2>
    // boxWidget=reinterpret_cast<vtkBoxWidget2>(caller);这样转换不可以，vtkBoxWidget可以
    vtkSmartPointer<vtkTransform> t = vtkSmartPointer<vtkTransform>::New();
    // 将boxWidget中的变换矩阵保存在t中
    vtkBoxRepresentation::SafeDownCast(boxWidget->GetRepresentation())
            ->GetTransform(t);
    this->m_actor->SetUserTransform(t);
}
 
/******************************** vtkAngleCallBack
 * *********************************/
vtkAngleCallBack::vtkAngleCallBack() : m_angle(nullptr), m_text(nullptr) {}
 
void vtkAngleCallBack::Execute(vtkObject *caller,
                               unsigned long eventId,
                               void *callData) {
    if (!m_text) return;
 
    if (eventId == vtkCommand::StartInteractionEvent) m_text->On();
    if (eventId == vtkCommand::InteractionEvent) {
        char text[200];
        sprintf(text, "Angle: %f",
                m_angle->GetAngleRepresentation()->GetAngle());
        m_text->GetTextActor()->SetInput(text);
    }
}
 
}  // namespace CallbackTools